/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.knox.gateway.filter.rewrite.impl;

import java.util.regex.Pattern;

import org.apache.knox.gateway.filter.rewrite.api.UrlRewriteFilterPathDescriptor;

public interface UrlRewriteFilterReader {
  String filterValueString( String name, String value, String rule );

  class RegexCompiler implements UrlRewriteFilterPathDescriptor.Compiler<Pattern> {
    @Override
    public Pattern compile( String expression, Pattern compiled ) {
      if( compiled != null ) {
        return compiled;
      } else {
        return Pattern.compile( expression );
      }
    }
  }
}
